GPT-5 Pro vs GPT OSS 120B
GPT OSS 120B is cheaper on output tokens, while GPT-5 Pro offers a larger context window. Choose GPT-5 Pro or GPT OSS 120B based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5 Pro | GPT OSS 120B |
|---|---|---|
| Provider | LLM Gateway | LLM Gateway |
| Input / 1M tokens | $15.00 | $0.05 |
| Output / 1M tokens | $120.00 | $0.25 |
| Context window | 400K | 131K |
| Parameters | — | 117B |
| Open weights | No | No |
| Released | Oct 2025 | Aug 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.